MDO3000 Programmer Manual.pdf - 第60页

Command Groups T able 2-29: Horizontal Commands (cont.) Command Description HORizontal:DIGital:SAMPLERate: MAGnivu? Returns the sample rate of the Magnivu digital acquisition HORizontal:DIGital:SAMPLERate: MAIn? Returns …

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Command Groups
Table 2-27: Hard Copy Commands (cont.)
Command
Description
HARDCopy:PRINTer:LIST? Displays the l ist of currently defined printers.
HARDCopy:PRINTer:REName Renames a network or email printer on the list of available printers, replacing the currently
stored settings with the settings specified in the command.
Histogram Command Group
Use the commands in the Histogram Command Group to set up a histogram for
measurements.
Table 2-28: Histogram Commands
Command
Description
HIStogram?
Returns all histogram parameters
HIStogram:BOX This command specifies the histogram box coordinates
HIStogram:BOXPcnt Specifies the histogram box coordinates in terms of percentages of the full screen extents
of the source waveform.
HIStogram:COUNt Clears the histogram count and statistics
HIStogram:DATa?
Returns the histogram data
HIStogram:DISplay This command specifies the scaling of the histogram display
HIStogram:END? Returns the time of the last bin of the histogram
HIStogram:MODe This command speci fies the type of the histogram, v ertical or horizontal
HIStogram:SOUrce Sets or queries the source used to create the histogram
HIStogram:STARt? Returns the time of the first bin of the histogram
Horizontal Command Group
Use the commands in the Horizontal Command Group to control the oscilloscope
horizontal parameters.
Table 2-29: Horizontal Commands
Command
Description
HORizontal? Returns settings for the horizontal commands
HORizontal:DELay:MODe This command specifies the horizontal delay mode
HORizontal:DELay:TIMe This command specifies the horizontal delay time
HORizontal:DIGital:RECOrdlength:
MAGnivu?
Returns the record length of the MagniVu digital acquisition
HORizontal:DIGital:RECOrdlength:
MAIn?
Returns the record length of the main digital acquis
ition.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-29
Command Groups
Table 2-29: Horizontal Commands (cont.)
Command
Description
HORizontal:DIGital:SAMPLERate:
MAGnivu?
Returns the sample rate of the Magnivu digital acquisition
HORizontal:DIGital:SAMPLERate:
MAIn?
Returns the sample rate of the main digital acquisition
HORizontal:POSition This command specifies the horizontal position, in percent, that is used when delay is off
HORizontal:PREViewstate?
Returns the display system preview state
HORizontal:RECOrdlength This command specifies the record length.
HORizontal:SAMPLERate? Query to display the sample rate in seconds.
HORizontal:SCAle This command specifies the horizontal scale
Mark Command Group
Use the commands in the Mark Command Group to identify areas of the acquired
wave
form that warrant further investigation.
Table 2-30: Mark Commands
Command Description
MARK
Move to the next or previous mark on the w aveform or returns all learnable settings from
the mark commands
MARK:CREATE Creates a mark on a particular waveform or all waveforms in a column
MARK:DELEte
Deletes a mark on a particular waveform, all waveforms in a column, or all marks
MARK:FREE? Returns how many marks are free to be used
MARK:SAVEALL This command saves all current marks on waveforms in the time domain to an internal
memory location. (This is equivalent to pressing the “Save All Marks" button in the Search
button menu on the front panel.) In order to retrieve the information, use the query form of
MARK:USERLIST.
MARK:SELected:END? Returns the end of the selected mark, in terms of 0 to 100% of the waveform
MARK:SELected:FOCUS? Returns the focus of the selected mark, in terms of 0 to 100% of the waveform
MARK:SELected:
MARKSINCOLumn?
Returns how many marks are in the current zoom pixel column
MARK:SELected:OWNer? Returns the owner of the selected mark
MARK:SELected:SOURCe? Returns the source waveform of the selected mark
MARK:SELected:STARt? Returns the start of the selected mark, in terms of 0 to 100% of the waveform
MARK:SELected:STAT E? Returns the on or off state of the selected mark
MARK:SELected:ZOOm:POSition? Returns the position of the selected mark, in terms of 0 to 100% of the upper window
2-30 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Command Groups
Table 2-30: Mark Commands (cont.)
Command Description
MARK:TOTal?
Returns how many marks are used
MARK:USERLIST The command creates a single user mark on a waveform in the time domain. The arguments
consist of an enumeration specifying the source waveform, followed by 7 time mark
parameters. You can create up to 1,024 marks. To save all the marks to memory, use
the command
MARK:SAVEALL TOUSER.
Mask Command Group
Use the commands in the Mask Command Group to perform mask and limit
testing, useful for long-term signal monitoring, characterizing signals during
design, or testing on a production line. The commands simplify many tasks, such
as conducting pass/fail tests in search of glitches or other waveform anomalies,
comparing a signal against a known good signal, or against a standard or custom
mask,
counting hits against specific mask segments, and much more.
NOTE. In order to use Mask commands, you need to install an optional Limit and
mask test application module, Tektronix part number DPO4LMT. Also, ≥350 MHz
bandwidth models are recommended for telecommunication standards >55 Mb/s.
NOTE. To ensure that Mask commands are enabled, use the command
APPLication:TYPe LIMITMask.
There are three categories of masks available:
N
OTE. Standard mask support is not available for the MDO3000 series models.
Standard The instrument has a built-in set of pre-defined standard
telecommunications masks (see the
MASK:STANdard command for a complete
list). Although these masks are non-editable, they can be copied and used to
initialize user-defined custom masks.
Limit Test: Limit testing is used to compare a tested signal against a known good
or "golden" version of the same signal with user-defined vertical and horizontal
tolerances. These non-editable masks are created using a Reference waveform or
template. Use the
MASK:TEMPLate commands for limit testing.
Custom: (also referred to in this document as “user mask”). You can create
custom masks and tailor them to your own specific testing requirements. These
commands provide granular control over the points of the mask and offer a
variety of testing options. For instance, you can specify test duration either by
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-31